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yan [13]
3 years ago
12

Atoms of which elements form bonds without satisfying the octet rule?

Physics
2 answers:
leva [86]3 years ago
8 0

Answer:

Helium and Hydrogen

Explanation:

Vinil7 [7]3 years ago
6 0

Answer:

Atoms of helium (He) and hydrogen (H) elements form bonds without satisfying the octet rule

Explanation:

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The weightlifter's internal store of energy decreased when he lifted the bar.
Mumz [18]

Answer:

The energy returns to the weightlifter's muscles, where it is dissipated as heat.

Explanation:

The energy returns to the weightlifter's muscles, where it is dissipated as heat. As long as the weightlifter controls the weight's descent, their muscles are acting as an overdamped shock absorber, as if the weight were sitting on a piston containing very thick fluid, slowly compressing it downward (and slightly heating up the fluid in the process). Since muscles are complicated biological systems and not simple pistons, they require metabolic energy to maintain tension throughout the controlled descent, so the weightlifter feels like they're putting energy into the weight, even though the weight's gravitational potential energy is being converted into heat within the lifter's muscles.

5 0
3 years ago
Is there a difference between radial velocity and angular velocity or are they the same thing?
Novosadov [1.4K]
Angular velocity is the rate of change of angle of a body, i.e. omega = v / r = (2*pi*r)/ r*t = (2*pi)/ T. where T is the time period of whatever is rotating and r is the radius of the circle. So if a circular disc is spinning at 1 m/s then the angular velocity of it is 2*pi radians/ second.
5 0
3 years ago
Simplify 45÷3+2×8-12+42​
Rufina [12.5K]

Answer:

Explanation is in the picture and the answer is 16

4 0
3 years ago
An arrow of mass 0.5kg so it has 25J of kinetic energy; find the speed of the arrow v = m/s​
miss Akunina [59]

Answer:

10 m/s

Explanation:

Use the kinetic energy formula:

KE=(1/2)mv^2

I always remember it as Kevin is half-mad, and very square.

25J = (1/2)*0.5kg*(v^2)

50J = 0.5kg*(v^2)

100J = v^2

v = 10 m/s

Check it:

KE = (1/2)*0.5*(10^2)

KE = 25J

yep, it's right!

4 0
3 years ago
Define the term sorting​
Nikolay [14]

Answer: arrange systematically in groups; separate according to type, class, etc.

Explanation:

i hooked this up btw

6 0
3 years ago
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